S-91478A630 Length 1 3/4" ASME B18.2.1 Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating that protects against rust in demanding woodworking environments
• Maximum torque transmission through external hex drive design that prevents tool slippage during installation
• Enhanced holding power with thread forming technology that creates strong, permanent threads in wood materials
• Optimized wood fastening performance through partial threading that reduces wood splitting while maintaining grip strength
• Heavy-duty construction with 3/8" diameter and 1-3/4" length for demanding structural wood applications
• Reliable industrial compliance meeting ASME B18.2.1 standards for consistent quality and dimensional accuracy
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

These zinc-plated steel wood screws are engineered to solve critical fastening challenges in industrial wood applications. The thread forming design eliminates the need for pre-drilling in many scenarios, creating stronger thread engagement that resists pull-out forces in structural wood assemblies. The external hex drive system ensures maximum torque application without cam-out, making them ideal for high-volume production environments where consistent installation is crucial. The partial threading provides concentrated holding power where it matters most while minimizing wood splitting in sensitive materials. These heavy-duty wood screws deliver reliable performance in furniture manufacturing, timber construction, and industrial wood product assembly where vibration resistance and long-term durability are essential.

Specification Summary & Compliance

Manufactured to precise ASME B18.2.1 standards with 3/8"-7 thread pitch and Class 2A thread tolerances for consistent fit and performance. These partially threaded screws feature a minimum thread length of 1.28" on a 1-3/4" overall length with right-hand threading direction. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across industrial sectors. The zinc-plated steel construction meets industry specifications for corrosion protection and mechanical strength in wood fastening applications.